| 基于DEM划分流域河网坡岸带汇水区的方法研究 |
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| 引用本文： | 乔飞,孟伟,郑丙辉,雷坤,张万顺,王艳.基于DEM划分流域河网坡岸带汇水区的方法研究[J].测绘科学,2011,36(2):27-29,26. |
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| 作者姓名： | 乔飞 孟伟 郑丙辉 雷坤 张万顺 王艳 |
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| 作者单位： | 北京师范大学水科学研究院;中国环境科学研究院;武汉大学资源与环境科学学院; |
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| 基金项目： | 国家重点基础研究发展计划资助项目(2007CB407307); 中国环境科学研究院中央级公益性科研院所基本科研业务专项(2007KYYW09) |
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| 摘 要： | 基于DEM提取流域河网、生成子流域的理论方法研究已经有了一定的进展,并得到了广泛应用.在DEM生成河网的过程中形成的网格流向矩阵和网格累积矩阵能够充分揭示流域网格单元的水流方向特征和汇水面积特征,利用这些特征关系能够对流域进行更进一步的划分,更好地满足实际需要.本文在DEM提取流域河网的基础上,结合网格流向矩阵,精确解...
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| 关 键 词： | DEM 流域河网 坡岸带汇水区 |
Study of dividing slope of catchment based on DEM |
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| QIAO Fei,MENG Wei,ZHENG Bing-hui,LEI Kun,ZHANG Wan-shun,WANG Yan.Study of dividing slope of catchment based on DEM[J].Science of Surveying and Mapping,2011,36(2):27-29,26. |
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| Authors: | QIAO Fei MENG Wei ZHENG Bing-hui LEI Kun ZHANG Wan-shun WANG Yan |
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| Institution: | ③(①Institute of Water Science,Beijing Normal University,Beijing 100055,China;②Chinese Research Academy of Environmental Science,Beijing 100012,China;③School of Resource and Environmental Science,Wuhan University,Wuhan 430079,China) |
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| Abstract: | Theories and methods of extracting river network of watershed based DEM have been developed and applied to some area.Flow direction and flow accumulation matrix reveal the characters of hydrology of watershed,and can be used to divide the watershed more accurately.Based on the extracting of watershed river network,the method of dividing slope of catchment area was shown in this paper,which has been applied to a mountain watershed and proved feasible.This study could be useful to divide the watershed,and be ... |
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| Keywords: | DEM river network slope of catchment |
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